anonymous 4 years ago ABC has its coordinates at A(a,-1), B(8,-1) and C(5,4).If the base is twice the height,find a.. what is A ?

1. Mertsj

h=5, 2h=10

2. anonymous

@mertsj how did you get it ? can i see or have any solutions for that ? thanks.. :))

3. Mertsj

|dw:1328616917028:dw|

4. anonymous

@mertsj how din you get the answer ?

5. anonymous

Lest find the length of the base first, it is given by $\sqrt{(8-5)^2+(4+1)^2}= \sqrt{34}$ but mertj says base should be $$10$$, wonder what I am missing ...